Philip Glass manuscript that was lost for decades gets first recorded release

A Philip Glass work that was performed in 1970 but then disappeared for nearly 50 years due to a lost manuscript has finally been put to disc.
‘Music In 8 Parts’, a song that was shared after the American composer’s ‘Music For Fifths’ (1969) but before ‘Music With Changing Parts’ (1971) and ‘Music In 12 Parts’ (1971-74), was lost until its manuscript resurfaced at a Christie’s auction in 2017.
The piece, its manuscript of which sold for